Question

finf the value of (a+b)² where a= -1,b=2



plzz answer​

Answer 1

hey !!

Step-by-step explanation:

(a+b)^2 = a^2 + b^2 + 2ab

now, putting value as a= -1 and b= 2

= (-1)^2 + (2)^2 + 2(-1)(2)

= 1 + 4 + (-4)

= 5 - 4

= 1

hope it helps u ..

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